Seven people were killed by Carlotta, and the state of Oaxaca requested MX$1.44 billion (US$113 million) for repairs to public infrastructure.

[nb 1] On June 12, a tropical disturbance developed off the west coast of Costa Rica, moved westward and entered the eastern Pacific after crossing Panama.

[1][2] The system became better organized as it tracked to the west-northwest as a westerly Kelvin wave provided favorable conditions for development.

[1][3] Convection increased around a developing low pressure area, and the National Hurricane Center (NHC) estimated a 50% chance of tropical cyclogenesis by late on June 12.

[4] After further organization, the NHC initiated advisories on Tropical Depression Three-E at 0300 UTC on June 14, while the system was located about 515 mi (829 km) south-southeast of Puerto Ángel, Oaxaca.

At the time, the depression was located in an area of low wind shear and warm sea surface temperature conditions that were considered favorable for intensification.

[7] An eye feature began developing on June 15,[8] and later that day Carlotta intensified into a hurricane while approaching southwestern Mexico.

The NHC initially predicted the hurricane would move along the Mexican coast just offshore, which would have allowed Carlotta to maintain much of its intensity.

[1][13] Carlotta rapidly weakened while moving inland, and it had deteriorated to tropical depression status by 12 hours after landfall.

[14] Very early on June 17, the NHC reported that Carlotta had weakened into a post-tropical remnant low; the system still had a broad circulation over southwestern Mexico at the time.

[23] According to authorities in Oaxaca, some roads were affected by mudslides; subsequently, they had opened emergency shelters and evacuated many of families from low-lying areas.